Creatures of Habit
A hard SQL mock interview question on DataDriven. Practice with AI-powered feedback, real code execution, and a hire/no-hire decision.
- Domain
- SQL
- Difficulty
- hard
- Seniority
- L4
Interview Prompt
We log every cloud cost allocation by team and service, and we're looking at the teams with real footprints: the ones with a lot of allocations on record. For each one, find the service it falls back on most often, how many times it landed there, and how many different services the team spreads across in total.
Summary
Every big team has one service it can't quit.
How This Interview Works
- Read the vague prompt (just like a real interview)
- Ask clarifying questions to the AI interviewer
- Write your sql solution with real code execution
- Get instant feedback and a hire/no-hire decision